> For the complete documentation index, see [llms.txt](https://docs.cloudeka.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudeka.ai/deka-flexi/deka-flexi-instance/details-instance/resize-root-disk.md).

# Resize Root Disk

You can increase the root disk size when your VM instance needs additional storage space. The root disk can only be resized to increase its size; reducing the size of the root disk is not supported.

* In the **Action** column, click **More**, then select **Resize Root Disk**.

<figure><img src="/files/XI4YGTWmoIpiRCKKn7NR" alt=""><figcaption></figcaption></figure>

* Enter the desired size for the **Root Disk**. The root disk size cannot be smaller than **20GB**. Then click **Resize Root Disk** to apply the changes, or click **Cancel** if you do not want to modify the root disk size.

<figure><img src="/files/LNDNZAJV70BREw39THQL" alt=""><figcaption></figcaption></figure>

* A process will begin to expand the size of the root disk.

<figure><img src="/files/M6l8CQhA4LxeW0vwidHT" alt=""><figcaption></figcaption></figure>

* After the resize process is complete, the updated disk size will automatically appear in the **Instance** list.

<figure><img src="/files/r6jrkEJoj5btgudvc150" alt=""><figcaption></figcaption></figure>